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Influence of Soil Parameters and Shield Operation Parameters on Surface Settlement of Shield Tunnel in Water-rich Sand Layer
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Zi-chang MA1, Ji-xun ZHANG1, Xu-hua REN1, Yu-xian ZHANG1, Chang-sheng WANG2, Liang ZHAO2, Dai-fu ZHU3, Jia-wei LU4
Water Resources and Power | 2023, 41(10) : 149 - 153
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Water Resources and Power | 2023, 41(10): 149-153
• WATER CONSERVANCY AND HYDROPOWER ENGINEERING •
Influence of Soil Parameters and Shield Operation Parameters on Surface Settlement of Shield Tunnel in Water-rich Sand Layer
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Zi-chang MA1, Ji-xun ZHANG1, Xu-hua REN1, Yu-xian ZHANG1, Chang-sheng WANG2, Liang ZHAO2, Dai-fu ZHU3, Jia-wei LU4
Affiliations
  • 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
  • 2.Henan Province Xixiayuan Water Conservancy Project Water Conveyance and Irrigation District Engineering Construction Administration, Zhengzhou 450000, China
  • 3.PowerChina Zhongnan Engineering Corporation Limited, Changsha 410014, China
  • 4.Shanghai Municipal Engineering Design Institute (Group) Corporation Limited, Shanghai 200092, China
Published: 2023-10-25 doi: 10.20040/j.cnki.1000-7709.2023.20222560
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There are some problems in construction, such as inaccurate material parameters and unclear influence of shield operation parameters on ground settlement. Based on a water-rich sand layer shield construction diversion tunnel, an orthogonal experiment is designed by setting the index of ground surface settlement, and a three-dimensional numerical simulation is used to analyze sensitivity of different material’s parameter. Mechanical parameters of materials are inverted according to the observed settlement. The subsidence lines under different excavation pressures, different synchronous grouting pressures and different speeds of the shield are calculated. The result shows that the surface subsidence is most sensitive to the change of internal friction angle of sand layer. Increasing the internal friction angle of the sand layer and the elastic modulus of the lining will reduce the settlement. The speed of the shield has a great influence on the subsidence. Increasing the speed of the shield, the maximum settlement of the surface settlement curve will increase, and the width of the "settlement tank" will also increase. The maximum settlement and the width of "settlement tank" decrease with the increase of excavation chamber pressure or synchronous grouting pressure.

tunnel shield in water rich sand layer  /  ground surface settlement  /  soil parameters  /  tunneling operation parameters  /  parameter sensitivity analysis
Zi-chang MA, Ji-xun ZHANG, Xu-hua REN, Yu-xian ZHANG, Chang-sheng WANG, Liang ZHAO, Dai-fu ZHU, Jia-wei LU. Influence of Soil Parameters and Shield Operation Parameters on Surface Settlement of Shield Tunnel in Water-rich Sand Layer[J]. Water Resources and Power, 2023 , 41 (10) : 149 -153 . DOI: 10.20040/j.cnki.1000-7709.2023.20222560
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Year 2023 volume 41 Issue 10
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222560
  • Receive Date：2022-12-07
  • Online Date：2026-01-28
  • Published：2023-10-25
Article Data
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History
  • Received：2022-12-07
  • Revised：2023-02-14
Funding
Affiliations
    1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
    2.Henan Province Xixiayuan Water Conservancy Project Water Conveyance and Irrigation District Engineering Construction Administration, Zhengzhou 450000, China
    3.PowerChina Zhongnan Engineering Corporation Limited, Changsha 410014, China
    4.Shanghai Municipal Engineering Design Institute (Group) Corporation Limited, Shanghai 200092, China
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表12种不同金属材料的力学参数
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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